import type { AllQuery, CommittedEvent } from "../types";
/**
 * Queries the store - all streams
 * @param query query parameters
 * @param callback optional event predicate
 * @returns query summary
 */
export default function query(query: AllQuery, callback?: (event: CommittedEvent) => void): Promise<{
    first?: CommittedEvent;
    last?: CommittedEvent;
    count: number;
}>;
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